<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
</head>
<body>
    <div id="app">
        <input type="button" value="事件绑定" v-on:click="doSomething">
        <input type="button" value="事件绑定简写" @click="doSomething">
        <input type="button" value="事件绑定简写" @dblclick="doSomething">
    </div>
</body>
<script>
    var app = new Vue({
        el: "#app",
        methods:{
            doSomething:function(){
                alert("WDNMD");
            }
        }
    })
</script>
</html>